Tamron has filed several new super telephoto prime lenses in Japan. These lens patents are Tamron 300mm f/2.8 Lens, Tamron 400mm f/4 Lens, Tamron 500mm f/4 Lens. According to patents, these lenses will be available for Nikon F-mount. The price for these super telephoto prime lenses will be cheaper than Nikon versions.

Tamron is also planning to announce their 100-400mm telephoto zoom lens soon. According to Japanese website Nokishitacamera, first leaked image of upcoming Tamron 100-400mm f/4.5-6.3 Di VC USD lens now available online. It will be available for Canon EF mount and Nikon F-mount. This lens seems like a competitor to Sigma 100-400mm C lens.